过去完成时详解和练习.ppt

Grammar in Unit 7一、过去完成时二、过去完成时与现在完成时的比较三、过去完成时与一般过去时的比较1一、:表示一个动作在过去某一个动作或过去某一时间之前已经发生或完成。:1)肯定式:2)否定式:3)疑问式:had+ Vedhad not +VedHad +主语+Ved2给出下列动词过去完成时的肯定式和否定式(注意Ved的变化规则) apologized; had not apologizedhad promised; had not promisedhad managed;had not managedhad blamed; had not blamedhad forgiven; had not satisfied; had not satisfiedhad camped; had not campedhad hunted; had not huntedhad attracted; had not attractedhad damaged; had not damagedhad injured; had not damagedhad rushed; had not rushed4过去完成时的例句: had told them the story of the broken bike on Monday when he was 20 minutes later for 。 had nearly forgotten about the shoe had not finished it when he you finished the work when he came back?他差不多把鞋的事忘了。他回来时我们还没有完成。他回来时你们工作完成了吗?6二、过去完成时与现在完成时的比较过去完成时与现在完成时的时间出发点不同。过去完成时以过去某个时间为基点,而现在完成时以现在作为时间的基点。因此,过去完成时是现在完成时的过去时。7Tom is not hungry. He has just had was not hungry, He had just had :(现在完成时)(过去完成时)8三、过去完成时与一般过去时的比较一般过去时表示在过去某个时间发生的动作或存在的状态;而过去完成时表示在过去某一时间之前完成的动作。 got to the station at 8:00, but the train had ,但火车已开走了。2. We got to the station at 8:00, but the train left at 7:,但火车七点半就开走了。10